Function writev

dpdk/lib/pcapng/rte_pcapng.c:64–93

};

static ssize_t writev(int fd, const struct iovec *iov, int iovcnt)
{
	size_t bytes = 0;
	uint8_t *ptr;
	void *tmp_buf;
	ssize_t ret;
	int i;

	for (i = 0; i < iovcnt; i++)
		bytes += iov[i].iov_len;

	if (unlikely(bytes == 0))
		return 0;

	tmp_buf = malloc(bytes);
	if (unlikely(tmp_buf == NULL)) {
		errno = ENOMEM;
		return -1;
	}

	ptr = tmp_buf;
	for (i = 0; i < iovcnt; i++) {
		rte_memcpy(ptr, iov[i].iov_base, iov[i].iov_len);
		ptr += iov[i].iov_len;
	}

	ret = write(fd, tmp_buf, bytes);
	free(tmp_buf);
	return ret;
}

#define IF_NAMESIZE	16
/* compatibility wrapper because name is optional */